Every family, community, nation, and civilization
must find agreement of the moral norms that will govern life together.
In three words, people must have some agreement on what will be
prohibited (actions that are wrong, i.e., slavery in any form, abuse of
children), what will be permitted (actions people debate about, but can
live with the differences, i.e., peaceful diversity of religious and
political affiliation), and what will be promoted (virtues for the
common good, i.e., compassion, access and opportunity, justice).